package com.briup.estore.common.util;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.parser.ParserConfig;
import com.alibaba.fastjson.serializer.SerializerFeature;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.SerializationException;

import java.nio.charset.Charset;

/**
 * @author adam
 * @date 2022/8/15
 * redis使用fastjson序列化
 */
public class FastJsonRedisSerializer<T> implements RedisSerializer<T> {
    public static final Charset DEFAULT_CHARSET = Charset.forName("UTF-8");
    private Class<T> clazz;

    static {
        ParserConfig.getGlobalInstance().setAutoTypeSupport(true);
    }


    public FastJsonRedisSerializer(Class<T> clazz) {
        this.clazz = clazz;

    }

    @Override
    public byte[] serialize(T t) throws SerializationException {
        if (t == null) {
            return new byte[0];
        } else {
            return JSON.toJSONString(t, SerializerFeature.WriteClassName).getBytes();
        }

    }

    @Override
    public T deserialize(byte[] bytes) throws SerializationException {
        if (bytes == null || bytes.length <= 0)
            return null;
        String string = new String(bytes, DEFAULT_CHARSET);
        return JSON.parseObject(string, clazz);
    }
}
